The Milky Way is a decently big Galaxy.  At 100,000 light years across, it is a full size barred spiral galaxy and distinctly different from what we would call ‘dwarf galaxies.’  But there are much larger galaxies in the universe.  Most reside near the centre of a massive galaxy cluster and are the result of Billions of years of mergers and collisions.  But some appear large because of their incredibly powerful release of energy.  A new Galaxy discovered in the early universe by a team of astronomers from the National Centre for Radio Astrophysics is an incredible 4 million light years...